Fastener



- IIIIIII 1/ M Mm rmulnllllllllllllllllb June 28, 1938. T. c. DAHNERT 2,122,130

, FASTENER Filed Nov. 29, 1955 mmlmlllmmiw Patented June 28, 1938 UNITED STATES PATENT OFFICE,

F ASTENER v Theodore (J. Dahnert, Racine, Wis., assignor to Ludwig Mfgy. (lo. Inc., Racine, Wis.

Application November 29, 1935, Serial No. 52,162

' 3Claims. (01. 292-210) This inventionappertains to fasteners, and more particularly to a quick releasable fastener especially susceptible for detachably holding'a window screen or storm sash on a window frame against rattling.

It is generally customary to hang window screens and storm sashes from their upper ends on supporting hooks and to hold the screens or sashes against accidental movement at their lower ends by the use of hooks or turnbuttons.

The hooks and turnbuttons are highly unsatisfactory, and if the screens or sashes do not reach the outer face of the window frame, engagement of parts is difficult and the screens or sashes tend to swing on their hooks, and if the screens orinto an operative position in engagement" with the screen or sash for resiliently holding the sash or screen against movement irrespective of the position of the screen or sash relative to the window frame. I Another salient object of my invention is to provide a resilient fastener, which can be efficiently used as an anti-rattling device for window sashes by securing the base portion to the midrail of the lower sash and allowing the'springurged lever to frictionally engage a side rail of the top sash. I

A further important object of my invention is to provide a spring fastener embodying a base plate having resilient fingers and a'swinging lever having flat hinge pintles formed thereon and held between the base plate and fingers, whereby the fingers will hold the lever in an inoperative position over the base plate when the lever is in one of its two positions, and away from the base plate toward an object to be engaged when in its other position.

A still further object of my invention is .to provide a spring fastener of the above character,

which will be durable and efficient in use, one

that will be simple and easy to manufacture, and one which can be placed upon the market at a reasonable cost.

With these and other objects in view, the inand illustrated in the accompanying drawing, in

which drawing:

Figure 1 is a fragmentary-front elevation of a window frame showinga screen associated therewith, with my improved fastener in its operative position for holding the screen in place against movement.

Figure 2 is a view similar to Figure 1 with the lever of the fastener in its inoperative position away from the screen for permitting the re- 10 moval of the screen from the frame.

Figure 3 is an enlarged detail plan view of my fastener showing the lever detached from the base plate.

Figure 4 through the fastener with the lever in its operative position.

Figure 5 is an edge elevation of another form of my fastener.

Figure 6 is a plan View of the form of my fastener shown in'Figure 5.

Figure '7 is a plan view of the fastener with the lock for preventing inadvertent swinging move ment of the lever in one direction.

Figure 8 is an edge elevation of the same. 25"

Referring to the drawing in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter R generally indicates my improved resilient fastener, which is adapted to be associated with a 30 window frame F for holding a storm sash or window screen Sin place.

The window frame F and the screen S form no part of my present invention, and hence the samecarf be of any approved construction, and 35 the same have merely been illustrated to show one use of my improved fastener.

The resilient fastener R embodies an attaching base plate l0 and a swinging lever 15. The base plate is formed from a single piece of metal of a 40 resilient nature suitably treated to resist wear and the elements. In accordance with my invention, the base plate I0 is provided adjacent to its longitudinal edges with slits II which form resilient fingers I2. The outer ends of the fingers 46 are slightly arcuated, as at l3, for a purpose which will be later set forth.

One or more openings I4 can be provided in the base plate I0 for permitting the securing of the base plate in positionon a window frame 50 by a suitable fastening element.

The leverl5 includes a body portion l6 having formed on its inner end the laterally extending flat pintles or hinge pins H. The body portion l5 of the lever can also be provided with a sub- I is a central longitudinal section 15 3 .relative to the outer face of the frame.

stantially U-shaped struck-out portion I8 for engagement with a storm sash or screen.

As clearly shown in Figures 1, 2, and 4, the lever has its rear end position on the base plate between the resilient fingers I2, with the flat pintles I! inserted under the curved arcuate portions l3 thereof. Obviously, the lever will be held in place by the spring fingers, and the fingers engage the pintles in such a manner as to normally hold the lever in the position shown in Figure 1 or over the'base plate as shown in Figure 2.

The device is particularly susceptible for holding screens or storm sashes in place, as previously stated, and as shown in Figures 1 and 2, the base plate H1 is secured to the Window frame adjacent to the lower end thereof, and after the screen or sash is placed in-position the lever is swung away from the base plate and into engagement with the sash or screen.

.l;)ue .to the fact. that the resilient. fingers l2 normally urge the lever inwardly, the lever will efiectively engage a storm sash or'screen irrespective of the position of the screen. or sash This is-an important feature, and as there are no hooks or turnbuttons to manipulate, scraping of the;sash or screen-is eliminated.

,The fastener can also be successfully used as an anti-rattling device for window sashes, and in this instance the base plate can be secured to the midrail of a lower sash and the lever can be placed-1in engagement with one side rail of the top sash.

In Figures 5 and 6, I have illustrated a further form of my invention, and in this form the fastener includes a flat base plate 30 having struck-out therefrom loops 3|, which are adapted to receive and hold leaf springs 32. The forward endsofzthe leaf springs 32 canbe slightly curved, as at 33, for the reception of the fiat hingepintles, 34 formed on the lever 35. Instead of havingfiat leaf springs 32, I can utilize round wire springs. The fastener shown in Figures 5 and 6 functions in the same manner as the fastener illustrated in Figures 1 to 4, inclusive.

In Figures '7 and 8 a still further form of my invention is illustrated, and in this arrangement positive. means is provided for preventing the accidental swinging back of the latch lever from its operative position. The latch proper is of substantially the same form as shown in Figures 1 to 4, inclusive, and hence embodies the .base plate 40, having the spaced longitudinal base plate 40 by means of a central pivot pin =46. Normally the resilient lock lever 45 engages over the rear end of the latch lever 44, and is prevented from accidental displacement by side lips '4'|, whichengage over the opposite edges of the latch lever. The latch lever 6 is provided with an upstrucknose 48, which is adapted to engage the front edge of the lock lever 45 when the latch-"lever is moved rearwardly. When it is desired to swing back the latch lever the lock lever is swung on its pivot 46 to one side of the base plate, as shown in dotted lines in Figure 7..

From the foregoing description it can be seen that-I have provided an exceptionally simple and durable form of resilient fastenerwhich will effectively accomplish the purpose intended.

Changes in details may be made without departing from the spirit or the scope of this invention, but :what I claim as new is:

l. A resilient fastener comprising a base plate, a swinging latch lever having laterally extending fiat hinge pintles formed thereon, resilient fingers carried by the base plate for engaging over said pintles,-and positive means for holding the latch lever against swinging movement in one direction.

2. .A resilient fastener comprising a. base plate, a swinging lever having laterally extending flat hinge pintlesv formed thereon, resilient fingers carried by the-base. plate for engaging over said pintles, and releasable means for holding the lever against swinging movement in one direction.

.3. A resilient fastener comprising a base plate, a swinginglatch lever havinglaterally extending fiat hingepintles formed thereon, resilient fingers carried by the base plate engaging over said pintles, the latch lever having a struckup nose, and a lock lever pivotally mounted on the baseplate and normallydisposed over the latch leverv in the path of said'nose to limit the swinging movement of the latch lever in one direction.

' THEODORE c. DAI-INERT. 

